I think it's first task in Threads level with that situation when we create new object and pass it to the interface variable like in 59 line in my code:
ReadFileInterface f = new ReadFileThread();
I don't know why start(); method don't start my
public void run() {
in 82 line. I looked on previous tasks and I don't understand. Please help me with only that, and I'll try wrestle with rest on my own.